Generation of human A9 dopaminergic pacemakers from induced pluripotent stem cells.

Generation of human A9 dopaminergic pacemakers from induced pluripotent stem cells.
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DOI:
10.1038/s41380-022-01628-1
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发表时间:
2022-11
影响因子:
11
通讯作者:
Feng, Jian
Feng, Jian
中科院分区:
医学1区
文献类型:
--
作者:
Li, Hong;Jiang, Houbo;Li, Hanqin;Li, Li;Yan, Zhen;Feng, Jian

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黑质 (A9) 多巴胺能 (DA) 神经元的退化会导致帕金森病 (PD) 的运动症状。我们使用小分子化合物引导人类诱导多能干细胞 (iPSC) 分化为 A9 DA 神经元,这些神经元与其体内对应物具有许多重要特性。该方法产生了大量表达适当 A9 标记物的 TH+ 神经元,例如 GIRK2 和 ALDH1A1,但大多数不表达 A10 标记物 CALBINDIN。在功能上,它们表现出基于 L 型电压依赖性 Ca2+ 通道的自主起搏,并表现出多巴胺释放的自身受体依赖性调节。当移植到 6-OHDA 损伤的无胸腺大鼠的纹状体中时,人类 A9 DA 神经元表现出强劲的存活和轴突生长,并改善了大鼠 PD 模型中的运动缺陷。生成患者特异性 A9 DA 自主起搏器的能力将显着改善 PD 研究并促进疾病缓解疗法的开发。
The degeneration of nigral (A9) dopaminergic (DA) neurons causes motor symptoms in Parkinson’s disease (PD). We use small-molecule compounds to direct the differentiation of human induced pluripotent stem cells (iPSCs) to A9 DA neurons that share many important properties with their in vivo counterparts. The method generates a large percentage of TH+ neurons that express appropriate A9 markers, such as GIRK2 and ALDH1A1, but mostly not the A10 marker CALBINDIN. Functionally, they exhibit autonomous pacemaking based on L-type voltage-dependent Ca2+ channels and show autoreceptor-dependent regulation of dopamine release. When transplanted in the striatum of 6-OHDA-lesioned athymic rats, the human A9 DA neurons manifest robust survival and axon outgrowth, and ameliorate motor deficits in the rat PD model. The ability to generate patient-specific A9 DA autonomous pacemakers will significantly improve PD research and facilitate the development of disease-modifying therapies.
DOI: 10.1016/j.stemcr.2014.01.013
发表时间: 2014-03-11
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